Device for scaffolds and the like



'J. J. OHARE. DEVICE FOR SCAFFOLDS AND THE LIKE. APPLICATION FILED ocr.10, 1919.

Patented Dec. 5, 1922.

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Patented Dec. 5, 19.22.

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I nnvron ron SCAFFOLDS AN THE LIKE.

Application filed Qctoher 10, 1919. Serial No. 329,736.

ToaZZ whom it may concern: I

Be it known that-l, JAMES J. Ol-lAnn, a citizen of the United States,and resident of Melrose, in the countyof Middlesexvand State ofMassachusetts, have invented a new and useful Device for Scaffolds andthe. like, of which the following is a specification. The main objectof. my invention is to provide a device which will hold two poles,

one above the other, in proper relation for the purposes of scaffoldingand a special object is to construct such a device so that ledgers, orledger boards, may be applied at two sides of the device, whether thelatter is used as a corner post or as an intermediatepost. i

A feature or my invention consists in providing retaining means toprevent transverse movement of the posts and means to support the deviceon a lower post but so constructing the device that two sides aresubstantially open, these two sides being opposite to each other in thecaseof an intermediate post and being adjacent to each other in thecase" of a corner post.

Another feature consists in making all the parts permanently fixed inoperative position and preferably integral which is very important fromthe standpoint of strength and cheapness.

Another feature 1s a peculiar projecting ledge to aid in thesupport of aledger board.

low.

In the drawing-- lFigure 1 is perspective view of portions of twopoles;i

Figure 2 is a perspective view of one form of my device;

form; Figure 4 is a section on line 4.4L of Figsure 2; y

Figure 5 is a section on line 55 of Fig ure 3; and

Other features will be pointed out be Figure 3 is a perspective viewof'another:

an intermediate post of the scaffolding, this form preferably consistingof a single casting comprising two vertical opposite walls C and D,atransverse inner partition wall. li iand retaining strips E, F, G, H, Jand K. The portion M rests on top of: pole A and supports pole B. Theretaining strips E and F prevent transverse movement of pole B, thestriped and it; prevent transverse movement of pole A with relation tothe device and strips G and Hprevent undesired movement of both poleswith relation to'the device. It will be observed that two opposite sidesare, entirely open except for the strips which are spaced apart and cthis construction permits the attachment, by

nails or otherwise, of the desirednumber of ledger boards, not only atone side but at two sides of the device and also gives a wide range oflocation for any ledger board because the height of the latter is muchless ordinarily than the vertical distance between retaining strips andtherefore the. ledger board may be attached to any convenient height,this choice of location be ing an important feature of my invention. InFigure 3 the vertical walls C and D are contiguous and at right anglesto each other, the retaining strips E and F connecting the walls at thetop, the strips G and H connecting them at the centre and the strips Jand it connecting them at the bottom. This form includes the parti tionM and it is also preferably made from a single casting. This form inconjunction with the poles is preferably used as a con i ner post forscaffolding, the ledger boards being attached at the two open sides andbeat right angles to each other.

%n this form I also provide the extensive choice of location of theledger boards described above in connection with Figure I preferablyprovidehorizontal projections N and N for support of the ledger board'Pin case said board isto be used at the height of either of saidprojections and additional holding of the board P is provided by nailssuch as P engaging the pole A, it being understood that the board P'isordinarily held in position by nailing but that the projections N and Nmaybe used for additional support. V The device willbe preferably madeof suchdimensions that the vertical edges of the walls will be prettynearly flush with the adjacent surface of the pole so that the ledgerboard may be conveniently nailed to the pole.

Among the advantages of my device .i; may point out that it is verycheap and serviceable, that its parts are always'asseinbled and readyfor immediate use, that it permits a large choice of location of theledger board and that it provides two open sides for the attachment ofthe ledger boards.

hat I claim is:

l. A device of the character described comprising two vertical walls,one having an internal projection to support the device on a pole and tosupport another pole; and strips fixed to said walls to act with saidwalls as retaining means forv the poles, said strips being spaced apartto permit the attachmentof ledger boards to the poles at two sides ofthelatter.

2. A device or the character described comprisingtwo vertical walls, onehaving an internal integral projection to support,

the device on a pole and to support another pole; and strlps integralwith said walls'to act with said walls to prevent undesired relativetransverse movement of the poles and the device itself, said stripsbeing spaced tially right angles to each other, one having an integralinternal projection to support the device on a pole and to supportanother pole; and substantially right-angled strips connecting andintegral with, said walls to act with said walls to prevent undesiredrelative transverse movement of the poles and the device itself,thedevice being substantially open at two sides, and said strips beingspaced apart to permit .the attach ment to the-poles of ledger boards atsubstantially right angles to each other.

4-. A device of the character described comprising two walls; retainingstrips supported by the walls; transversely extending means within thedevice to support-the device on a pole, the device being substantiallyopen at two'sides; and a horizontal portion extending outwardly from oneof said strips to support a ledger board butv permitting nailing of thelatter to a pole.

JAMES JOHN OHARE.

